Wow, what a trip down memory lane.<p>I ran across this sometime in '99 or '00 and got inspired to create a Flash presentation of all the proofs. It got a little out of hand when I decided to do the same for Apollonius' conics, which in the days of pre-1.0 Actionscript meant rolling your own trigonometric functions.<p>That PC later crashed and I lost everything, but this site is still kicking around. I love the internet.